This pattern is easy to recognize, difficult to confuse with other signals, and quick to send—even by someone under extreme stress.
Why SOS Was Chosen
In the early 1900s, wireless radio communication was still developing, and ships needed a universal distress signal that could be sent clearly over long distances. In 1905, German radio operators adopted SOS, and by 1908, it became the international standard for maritime distress calls.
Its strength wasn’t in hidden meaning—it was in clarity and reliability. Unlike longer coded messages, SOS could cut through static, weak signals, and human error.
Where the Myths Came From
Phrases like “Save Our Ship” or “Save Our Souls” came later. These explanations helped people remember the signal, but they were never official definitions. Over time, these backronyms became so widespread that many people still believe they are the true origin.
In reality, SOS was selected before those phrases ever existed.